app/views/search/_article_description.html.erb
<% article = article_description %>
<div class="search-article-description">
<span class="search-field-label"><%= _("Description") %>:</span>
<% content = article.abstract.present? ? article.abstract : article.to_html %>
<% if content.present? %>
<% description = strip_tags(content.to_s) %>
<% description.gsub!(/\s{2,}/, ' ') %>
<% description = excerpt description, description.first(3), radius: 200 %>
<span class="search-article-body"><%= description %></span>
<% else %>
<span class="search-field-none"><%= _('None') %></span>
<% end %>
</div>